Colburn said he really likes the voice-activated “intelligent assistant,” but he was unable to demonstrate Siri’s functionality on air because the phone could not connect to the network, likely because new iPhone 4S users were overrunning the system.

“I didn’t think it was going to work all that well,” Colburn said of Siri. “It’s pretty spectacular.”

Colburn also mentioned that iPhone 4S users can set reminders by location instead of time, which can be a very handy featured.

“It’s really, really quite cool,” he said.

While the new iPhone is available to Sprint and Verizon customers, only AT&T customers will see a real boost in speed, Colburn explained. It has to do with the technology on which the networks’ infrastructure is built. Sprint and Verizon cannot take advantage of the new iPhone’s dual antenna technology that provides the speed boost.

Apple said its first-day pre-orders for the iPhone 4S topped 1 million. That broke the record set by last year's model, which was sold only by AT&T in the U.S. Apple has expanded carriers, making the iPhone 4S available to Sprint and Verizon, as well as AT&T.

The phone started selling on Friday in U.S., Australia, Canada, France, Germany, Japan and Britain. Apple says is has sold more than 4 million units in the three days since.

The base model of the iPhone 4S, which is now in stores, is $200 with a two-year contract.